POSTIES 1014 COVER

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Across
  1. 2. a person who is walking and not travelling in a vehicle
  2. 4. damage caused to water, air, etc by harmful substances or waste
  3. 6. Green roofs make cities cooler by taking in _____ from the sun and letting out water into the air.
Down
  1. 1. Solar panels turn sunlight into _____.
  2. 3. the surface that covers the top of a building
  3. 5. another word for "sea"